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Lecture 1

# Lecture 1 - Economics 101A(Lecture 1 Stefano DellaVigna...

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Economics 101A (Lecture 1) Stefano DellaVigna August 27, 2009

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Outline 1. Who are we? 2. Prerequisites for the course 3. A test in maths 4. The economics of discrimination 5. Optimization with 1 variable
1 Who are we? Stefano DellaVigna Associate Professor, Department of Economics Bocconi (Italy) undergraduate (Econ.), Harvard PhD (Econ.) Psychology and Economics, Economics of Media, Behavioral Finance Evans 515, OH Th 12-2

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Mariana Carrera (1 Section for 30 students) Graduate Student, Department of Economics Health Economics, Patient-Doctor Decisions Justin Gallagher (2 Sections for 20 students) Graduate Student, Department of Economics Labor Economics O ce Hours: To be announced
2 Prerequisites Mathematics Good knowledge of multivariate calculus — Maths 1A or 1B and 53 Basic knowledge of probability theory and matrix algebra Economics Knowledge of fundamentals — Ec1 or 2 or 3 High interest!

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3 A Test in Maths 1. Can you di ff erentiate the following functions with respect to x ? (a) y = exp( x ) (b) y = a + bx + cx 2 (c) y = exp( x ) b x 2. Can you partially di ff erentiate these functions with respect to x and w ? (a) y = axw + bx c x w + d xw (b) y = exp( x/w ) (c) y = R 1 0 ( x + aw 2 + xs ) ds
3. Can you plot the following functions of one variable? (a) y = exp( x ) (b) y = x 2 (c) y = exp( x 2 ) 4. Are the following functions concave, convex or nei- ther?

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